Wrench.



PATENTED AUG. 2, 1904.

E. K. ANSORGB.

WRENCH.

APPLICATION FILED NOV. 2, 19.02

3 SHEETS-SHEET 1.

X0 MODEL.

IN VE N 70/"? age/l8 fuflnsazye PATENTED AUG. 2, 1904.

E. K. ANSORGE.

WRENCH.

APPLICATION FILED HOV.2,1903.

3 SHEETS-SHEET 2.

NO MODEL Wm M w wi //v VEN 70/? j fzzyene J6, %2Ls"0fge A 7TOHNE rs No766,577. PATENTED AUG. 2, 1904. B. K. ANSORGE.

WRENCH.

APYLIOATION FILED NOV.2,1903.

no MODEL. 3 SHEETS-SHEET a.

INVENTOH Zayeize .flfiwaz-ye UNITED STATES Patented August 2, 1904.

PATENT FFICE.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 766,577, dated August2, 1904.

Application filed November 2,1903. Serial No. 179,438- (No model.)

To (all whmn it nuty concern:

Be it known that I, EUGENE K. ANsoRen, a citizen of the United States,and a resident of Greenbay, in the county of Brown and State of\Yisconsin, have invented a new and Improved WVrench, of which thefollowing is a full, clear, and exact description.

This invention relates to a wrench of that class in which the nut-socketis in the form of a ratchet and the body of the wrench carries a dogcoacting with the ratchet, so that a stepby-step movement in onedirection may be given to the nut through an oscillating movement of thewrench-handle.

The invention resides particularly in the novel form of the dog.

The invention also resides in certain details of structure andarrangement of parts, all of which will be fully set forth hereinafter.

This specification is an exact description of several forms of myinvention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a plan view of the invention. Fig. 2 is a longitudinalsection thereof. Fig. 3 is a cross-section on the line 3 3 of Fig. 2.Fig. 4c is a vertical section taken longitudinally of the shank andillustrating the ratchetsocket and dog. Fig. 5 is a detail perspectiveview of the finger-piece for preventing idle movement of the ratchet.Fig. 6 is a vertical sectional view showinga modified form of thenut-socket. Figs. 7, 8, and 9 are detail views of a modification in themanner of mounting the dog. Fig. 10 is an end view of one of the linersfor changing the size of the nut-socket. Fig. 11 is a longitudinalsection of the same. Fig. 12 is a view showing diiferent sizes ofspacers. Fig. 13 is a plan view of a modification with parts brokenaway. Fig. 14 is a section on the line 14 14: of Fig. 13. Fig. 15

is a section on the line 15 15 of Fig. 13; and Fig. 16 is a detailperspective view of the pushblock employed in Figs. 13, 14:, and 15.

As illustrated best in Figs. 2, T, 8, and 9, the nut-socket 15 has aratcheted periphery and coacts with a dog 16 in the form of a blockprovided with a plurality of ratchet-like teeth. Said dog may be variedin shape considerably Without departing from the essential form of myinvention, which lies in the dog-formed of a plurality of spacedratchet-teeth arranged to engage the ratcheted periphery of thenutsocket and mounted to move toward and from the axis or center of thenut-socket. Said dog is mounted in the shank 17 of the wrench and, asshown, Figs. 7, 8, and 9, is pressed yieldingly into operative positionby an expanding-spring 18. The dog as shown in Fig. 7 is without a stem,in Fig. 8 it is formed with a stem or shank 16, and in Fig. 9 the dog iswithout a stem, but is arranged in a diagonally-extending cavity in theshank 17 of the wrench. lVith this arrangement the nut may be engagedwith the interior walls of the nutsocket and by giving the shank of thewrench an oscillatory movement a step-by-step movement will be impartedto the wrench, thus screwing or unscrewing the nut, as desired.

The nut-socket or ratchet 15 is held to turn freely in the body 19 ofthe wrench, said body having a suitable cover-plate 20 and being open atthe bottom and top, so as to expose the ratchet or nut-socket, and saidratchet having a reduced extension 15 turning in the body 19. The cover20 lies over the peripheral portion of the ratchet 15, as shown best inFig. a.

21 indicates a finger-piece in the form of a yoke capable of straddlingthe nut, (see Figs. 1 and 5), this yoke being removably engaged withorifices 15 in the ratchet and serving to permit holding the ratchetagainst idle movement upon the return movement of the handle or shank ofthe wrench. By this device when the shank is moved back to recoverposition of the dog on the ratchet the ratchet may be held againstrotation, and thus the liability of merely moving the nut back and forthis avoided. The orifice in the nut-socket piece or ratchet 15 for thereception of the nut may be made of any form desired-square, hexagonal,or octagonal. It is here shown as square. I prefer to make this orificesufliciently large to receive a nut of maximum size or other object tobe turned and to adapt the nut to small sizes by means of the linersshown in Figs. and 11 and the spacers 2 1' shown in Fig.12. The saidliners consist of tube-like members 22, the interior diameters of whichare equal to the size of the nuts to which they are adapted, and thesaid liners are held removably yet securely in place by means of springs23, attached to the liners and adapted to engage the inner walls of thenut-socket. The spacers shown in Fig. 12 may be used in place of theliners above described, and these spacers comprise body portions 24 inthe form of plates adapted to lie in the nut-socket of the ratchet. Saidbody-plates are provided with lugs 25 at their ends which engage theside faces of the ratchet 15 to hold the spacers in position.

In Fig. 2 the dog 16 has a stem 26 attached thereto, this stem runningthrough a suitable passage formed longitudinally in the shank or handle17 of the wrench and extending to a cavity 17 in the free portion of thehandle. This cavity is closed removably by a suitable cover-plate 27,and over the end of the handle and cover-plate a cap 28 is fitted andheld by a screw 29. For convenience in forming the passage in the shank17 which receives the stem 26 of the dog 16, I locate the screw 29 atone side of the center of the shank, as shown in Fig. 3, and the stem 26may then be inserted longitudinally through the rear end of the shank 17forward until it reaches the dog 16, with which dog the said stem may beengaged by screwing it into the dog or in any other desired manner.

30 indicates a spring for pressing on the stem 26 to hold the dog 16 ininactive position, and said dog is thrown into active position by meansof an elbow-lever 31, fulcrumecl in the cavity 17 and operated byhandpiece 32, which is mounted at 33 to swing toward and from the centerof the shank or handle 17, the free or rear end of the handpiece havingaprojection 34:, the movement of which is limited by the cap 28, beforedescribed. In operating this form of the invention therefore it is onlynecessary to grasp the handle or shank 17, and when the dog is to engagethe ratchet the handpiece 32 should be pressed inward, then the handleshould be moved to impart the desired movement to the nut. When thehandle is to be moved back, the handpiece 32 should be released,whereupon the spring 30 will disengage the dog, and the shank and dogmay then be moved back around the ratchet to recover the engagement ofthe dog with the ratchet, whereupon the above-described operation shouldbe repeated.

Fig. 6 illustrates a modification of the invention in which the ratchetor nut-socket piece 15 is formed with flanges 35, extending above andbelow the ratchet, said flanges serving to engage the nut or othermember to be turned and enabling the nut to be operated,

notwithstanding that some obstruction may lie at the side thereof, whichobstruction would render the use of the device shown in Fig. 2inconvenient or impossible.

If desired, the devices shown in Fig. 2 for operating the pawl 16 may bereplaced by those shown in Figs. 13 to 16. The devices shown in thislatter figure are preferable, since they are cheaper to construct andare probably more durable in operation. Instead of providing a swingingfinger-piece I employ a push-block 40. (Illustrated best in Fig. 16.)Said block is fitted in a transverse cavity formed in the handle of thewrench at the outer end thereof and has transverse movement in saidcavity limited by an internal stud 11, which works in a cavity 42,formed in one side of the push-block, as shown. The other side of thepush-block has a cavity 43 formed therein, and at the other end of saidcavity is a rounding shoulder 44, which engages an elbow-lever 45,mounted within the handle of the wrench, as shown in Fig. 13. Thiselbow-lever is essentially the same as the elbow-lever 31, beforedescribed, and coacts with the stem of the dog, as will be understoodfrom the previous description. The push-block is operated by thepressure of the hand the same as the before-described handpiece 32.

The handle of the wrench may be formed with the removable cover-piece 27before described, or, if desired, it may be cast integral and cored orbored to produce the necessary cavity in the handle.

Various changes in the form, proportions, and minor details of myinvention may be resorted to at will without departing from the spiritand scope thereof. Hence I consider myself entitled to all suchvariations as may lie within the scope of my claims.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A ratchet-wrench, comprising a body, a shank, aratchet mounted in the body, a dog coacting with the ratchet, a stemconnected to the dog, and movable longitudinally in the shank, a springpressing the stem in one direction,- and a manually-operated device formoving the stem in the opposite direction, said device comprising anelbow lever engaged with the stem and a handpiece movably mounted on theshank and engaged with the elbow-lever.

2. A ratchet-wrench, comprising a body and shank, a ratchet arranged toturn therein, a dog coacting with the ratchet, an elbow-lever carried bythe shank, connections between the elbow-lever and dog, and atransverselymovable push-block carried by the shank and coacting withthe elbow-lever.

3. A ratchet-wrench, comprising a body and shank, a ratchet arranged toturn therein, a dog coacting with the ratchet, an elbow-lever carried bythe shank, connections between the elbow-lever and dog, atransversely-movable push-block carried by the shank and co acting withthe elbow-lever, said push-block having a cavity therein, and a roundingprojection in the cavity to engage the push-block.

at. A ratchet-wrench, comprisinga body and shank, a ratchet arranged toturn therein, a dog coacting with the ratchet, an elbow-lever carried bythe shank, connections between the elbow-lever and (log, atransversely-movable push-block carried by the shank and coacting withthe elbow-lever, said push-block having a cavity therein, and a stemhaving a projection lying loosely in the cavity, to limit the movementof the push-block.

A ratchet-wrench, comprising a body, a ratchet-wrench therein, means foroperating the ratchet, and a spacer composed of a plate having flangesat its ends, the plate being capable of fitting within the socket in theratchet and the flanges engaging the side faces of the ratchet, wherebyto my the area of the said socket. g

6. A ratchet-wrench, comprisinga body, a ratchet mounted therein, adogcoacting with the ratchet, means for yieldingly pressing the dog intoinactive position, and a manuallyoperated means for moving the dog intoactive position.

7. A ratchet-wrench, comprising a body, a ratchet and dog carriedthereby, and a yoke engaged with the ratchet and capable of straddlingthe nut, for the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EUGENE K. ANSORGE.

Witnesses:

NV. P. WVAGNER, CLARA T. ANsoRen.

